This exceptional and rare film portrays a traditional type of organ grinder in Madrid. The barrel organ is a portable instrument that uses perforated paper cards that produce music when passing over a roller surface, activating a bellows and blowing air through a tuned pipe.
This film follows the organist and his young son pedaling the organ to various places in Madrid, including the San Antonio de la Florida chapel and Plaza Mayor. Scenes include people throwing coins from windows and the boy picking them up. The film is full of wonderful streets scenes of a bygone time in Madrid. Director Moreno was best known for a series of Spanish horror films.